In the activated sludge process__________________?

Waste Water Engineering 18/06/2020

A. Aeration is continued till stability
B. Aeration is done with an admixture of previously aerated sludge
C. Sludge is activated by constant stirring
D. Water is removed by centrifugal action

Related Mcqs:

    The ratio of maximum sewage flow to average sewage flow for mains up to 1 m in diameter, is___________________?
    A. 1.5 B. 2.0 C. 3.0 D. 4.0...
    Oxidation process results in the formation of___________________?
    A. Carbon dioxide B. Nitrates C. Sulphates D. All the above...
    It is customary to design a sewer for D.W.F. on the basis of________________?
    A. Average demand B. Twice the average demand C. Thrice the average demand D. Four times the average demand...
    Pick up the incorrect size of stone ware sewers_________________?
    A. 52.5 cm B. 67.5 cm C. 82.5 cm D. None of these...
    The gas which may cause explosion in sewers, is_________________?
    A. Carbondioxide B. Methane C. Ammonia D. Carbon monoxide...

Leave a Reply

Your email address will not be published. Required fields are marked *